deck the block vs aftermarket pistons..

[duster731]

I have a 77 318 that's 8.5 to 1 cr ill be adding a set of 302 heads with 188-160 valves but would like to be in the barpark of 10 to 1 cr so what would be better to do deck the block or Aftermarket pistons...

If I deck the block how much would it cost and how would I know how much to take off, what else changes when decking the block other than pushrod length..

I know I can get kb pistons but that's around 300$

Over all I'm looking for more HP when I throw the 302 heads on

 

[412 Stroker]

you might have to mill the intake to match up with the heads, maybe.....I would save my money and get the correct pistons though JMO.

 

[Dodge74]

KB107 will do just fine for that 318; i did the same on 360 060 over. If you mill the block you have to mill the intake and to really make it right milling the heads wont hurt either. so to keep the cost down i just did pistons....

 

[fishy68]

KB107 will do just fine for that 318; i did the same on 360 060 over. If you mill the block you have to mill the intake and to really make it right milling the heads wont hurt either. so to keep the cost down i just did pistons....

Uh... KB107's in a 318??? Their about .090" too big.